<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../js/vue.js"></script>
</head>

<body>
  <div id="app">
    <button @click="inputVal='你好'">修改数据</button><br>
    用户名: <input type="text" v-model.trim="user.username"><br>
    密码: <input type="text" v-model.number="user.password"><br>
    性别：<input v-model="user.gender" name="gender" type="radio" value="male">男
    <input v-model="user.gender" name="gender" type="radio" value="female"> 女<br>
    爱好: <input v-model="user.hobby" type="checkbox" value="backetball"> 篮球
    <input v-model="user.hobby" type="checkbox" value="footboll"> 足球
    <input v-model="user.hobby" type="checkbox" value="pingpang"> 乒乓球<br>
    地址：<select v-model="user.address">
      <option value="beijing">北京</option>
      <option value="shanghai">上海</option>
      <option value="taiyuan">太原</option>
    </select><br>
    介绍：<textarea cols="30" rows="10" v-model="user.description"></textarea>
    <button @click="submitHandler">提交</button>
    <br>{{user}}
  </div>
  <script>
    let vm = new Vue({
      el: "#app",
      data: {
        user: {
          // 复选框有默认值，是个[]空数组
          hobby: []
        },
      },
      methods: {
        submitHandler() {
          let data = JSON.stringify(this.user)
          console.log(data);
        }
      },
      created() {

      }
    })
  </script>
</body>

</html>